Engine.



J. C. VSCHULTZ & C. D. McCANN.

ENGINE. l APPUCATION ljlLED JULY414. 1913. RENEWEDAPR. 17 1916.

1,185,247. l famed May so; 1916.

Q N Q R. w

:3| s "di N 1 Il' i C lll f 0 I Il i o Il I l Qf/ a l l. M 1 S L United States., and residents' of "Newton, in vthe county;M of IJasper,"andStateofL lowa,

i f gine, of which thefollowingis a, specifica- Ta mmmamy-mami1 have yinvented a certain new `and uSefulE tion.

i `The,object of our invention; is to provide an yengine of simple, durable and inexpen-` u siveconstruction, oftheftypefin which two vpistons are mounted ina'fsingljecylinder?` M1',

More particularly, it is our object tojoro-r videan engine of the `kindmenticned, hav-1;l ing a crank shaft mounted/below' a 'cylinderl land having the outer ende of the vpiston rods .mounted in bearings.above the level of "the y crank shaft and below'thelevel `offi'lhe mid-y dle ofthe cylinder. n l .5.. f Still al furtherobjectisvto provide in such an engine having'pistontrdsapitmen'and n crank shafts, so larranged agate operate the the enginewlth a yminimum of? shaft `from friction.

Still a further Object iS to jo'rovideV Such ak j device inwhich 'the partsv are.; so arranged l'and `constructed, as to ,requiela minimum..-

partsA and al minimumWeight` n i k A I number of thereof.

A further obj ect`l is( `to provided an.-` engine" Av:of the class described" infwhich the crank Y shaft is so mounted in thecaing as".to:cause the crank shaft to work Ain Voil at alltimes.

' Our invention 'consistsfin certain details,l` in the construction, combination and ar-mr rangement of the varioue;` .parts ofthe de t vice, whereby the objectsconteniplated are l 2 attained, ashereinafter more fullyaset'forth, pointed out in our claimsiandillustrated inthe ypistonrods 'are mountedfinifbearings,

. whereby -the pistoneaare ,held truej fto their, i pathyoftravel.,'-Onaccountjofthegcompact, y n 'construction ofour enginea singlevfcrank ;ff 'y i caseisjprovided,andaijnininrium,of-material,I f, f `andweight'is!necessarvliii building- `ourfen- `100 t gine. 'Atthevsamejtime the working parts the accompanying drawinga'inwhich:

, Figure li shows a vertical, longitudinal, n' sectional view through anfengine embody# ing our invention. FigpQ Yshows 4a 'horizon-M tal 'sectional view of the 'crankfycase,`l fiiy, wheel', the crank shaft and `the. pitman work-jf -In the accompanying drawings," we have .fused "the reference numeralflOtofindicate 50, the 4base on which oury improved engine is"I frameor support 11. f The lower end of thel crank caseis curveddownwardly, as shown' at 12, and is designed to contain"oilflQ The mounted. Mounted von the base fl() i`s a cylinder 14 is 1 suitably mounted` and in it are two oppositely workinglpistons 15'to'g Sprit-ifiamera. .n

'formed thereonkandextending@ v dlre'ctionsvfrom eachother, as;ShownzlnFigl` v` Vpitmanj2 3 is bentgandtherefor comprises two portions lwhich formi obtue portion. `of thef cylinderjlrtf Oni-one, outer fprovided `for thej cylinderl crank case* is provided with ajc'over.,l 2 5` fandsaid [i 1.[n `an engine," aeupp'or-t,,a `cran V [thereon having acentral` downwardly,y jeX-,,1 05

ltended Iportion designedto hold {oilandto .j

positev 2. 'Pivoted to the` portion:184 offe'avtcli` piston 7 rod `a vpitn'lan 23, .whichisfIa-lsorlsuitably.A.. ,el

end ofthe cranln-jehaftisya whelfZL and on fthe other en dffis` Y'af hitableI'Ofe'arl wheel 25. lawinbexunderstodft I rdinafy valves and `-valve ljprimin'g ;Ineclianiml 'are cover is so constructedfthatythe rankworks o inoilfj- 'l Our engine has` -az lnumber fof verwees",-

going description# jtiS; extrmlyompat and is madeof fewan'd ks'innplefparts.` fOur of the "pitmen and thefpiston stems, wwe-*aref u the crank?"shaftl with a minimum-ofll' p run inl oil.

We claimas ourinventionz receive a,cra'nk shaft, a-y covermember for said case, a cylinder within said.c'ase'having aportionprojectingfupwardly ,throughSaid"y i i case, opposite pistons fin said cylinder-*haw 11"0 k case.y j

ing' stems extending away from the pistons, and slidably supported at their outer ends, a transverse shaft in said case below the cylinder, having spaced oppositely eXtending cranks, and pitnien pivoted to the respective piston stems and to said cranks.

2. 1n an engine, a support, a crank case thereon having a central downwardly eX- tended portion designed to hold oil and to receive acrank shaft, a cover member for said case, a cylinder within said case having a portion projecting upwardly through said case, opposite pistons in said cylinder having stenis extending away from the pistons, then downwardly and outwardly, then outwardly, and slidably supported at their outer ends, a transverse shaft in said case below the cylinder, having spaced oppositely extending cranks, and pitnien pivoted to the respective piston stems and to said cranks, said pitmen having portions bent outwardly to clear the ends of said cylinder.

Des Moines, Iowa, June 30, 1913.

JOHN C. SCHULTZ. CLYDE D. MGCANN. Witnesses:

W. A. WILLIAMSON, E. E. WARING.

Caplan of this patent may be obtained for ve cents each, by addressing the Commissioner of Eatenm. Washington, D. C." 

